Peninsula roofs grow 3 kinds of organic growth
Fox Roof Cleaning removes black algae, moss and lichen, the 3 growths most common on Peninsula roofs.
- Black algae streaks show up first on north and east slopes and degrade the shingle surface.
- Moss grows in overlaps, lifts shingle edges and traps water. Aerial inspections flag it most often.
- Lichen bonds to the surface and pulls granules off when scraped. It must be killed, not scraped.
Scraping and pressure washing leave the roots behind
Fox Roof Cleaning never scrapes, because scraping tears granules and leaves roots that regrow in under 1 year.
A soft wash kills the organism at the root. The roof sheds the dead material on its own and stays clean for years.
Fog-belt and shaded roofs grow moss fastest
Fox Roof Cleaning sees the heaviest moss in 4 places: Pacifica, Daly City, Half Moon Bay and western San Francisco.
Shaded roofs under redwoods and oaks in Woodside, Burlingame and Menlo Park come next.
Every moss treatment includes 5 standard steps
Fox Roof Cleaning runs 5 steps on every moss, algae and lichen job.
- Debris removal so the treatment reaches the growth
- Roof-safe treatment with a longer dwell on heavy moss
- Gentle rinse and gutter flush
- Landscaping protected and rinsed
- Before-and-after photos and a written regrowth expectation
Fox Roof Cleaning pairs this with 2 related services
Fox Roof Cleaning often books these 2 services on the same visit: soft wash roof cleaning and roof debris removal.
Read How often should a Peninsula roof be cleaned? Fog, redwoods and the coast change the answer, or compare all 6 Fox roof cleaning services.
Available in: San Francisco, Daly City, South San Francisco, Pacifica, San Bruno, Millbrae, Burlingame, Hillsborough, San Mateo, Foster City, Belmont, San Carlos, Redwood City, Menlo Park, Atherton, Woodside, Portola Valley, East Palo Alto, Half Moon Bay, Brisbane, Colma.